发明名称 |
ELECTRODEPOSITION OF COPPER |
摘要 |
1526076 Quaternary ammonium polymers OXY METAL INDUSTRIES CORP 12 Sept 1975 [11 March 1975] 37603/75 Heading C3R [Also in Division C7] The invention comprises poly(alkanol quaternary ammonium salt)s having the following formula:- wherein: R<SP>1</SP> = Alkylene group of 1-6 carbon atoms ; R<SP>2</SP> = alkylene group of 1-6 carbon atoms; R<SP>5</SP> = alkyl group of 1-4 carbon atoms; aralkyl; alkenyl group of 1-4 carbon atoms; alkynyl group of 1-4 carbon atoms; alkylene sulphonate group of 1-4 carbon atoms (e.g. -CH 2 CH 2 CH 2 SO 3 <SP>-</SP>); or The salts may be added to acidic copper electroplating baths to improve the copper deposit. The salts are prepared by reacting a polyalkylenimine with an alkylene oxide to form a polyalkanolamine and then with an alkylating or quaternization agent. In examples ethoxylated polyethylenimine is reacted with benzyl chloride and the products are added to various aqueous electroplating baths.
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申请公布号 |
GB1526076(A) |
申请公布日期 |
1978.09.27 |
申请号 |
GB19750037603 |
申请日期 |
1975.09.12 |
申请人 |
OXY METAL IND CORP |
发明人 |
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分类号 |
H05K3/18;B41C3/08;B65D85/84;C08G73/04;C25C1/12;C25D3/38;(IPC1-7):C08G73/04 |
主分类号 |
H05K3/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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